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Homebrew PCBs

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Re: What is the best etching solution;

2009-05-01 by Ronny Eia

--- In Homebrew_PCBs@yahoogroups.com, Jack Coats <jack@...> wrote:
>
> What is the mix for the Hydrogen Peroxide, Muratic acid for a 'proper
> mixture'? (Yea, I'm a newbie, so
> excruciating details are welcome.)

To make 1l I used 700ml water, 200ml HCl and 100ml H2O2. My chemicals is 30%, so if you use weaker/stronger stuff the mixture will change.

Above is the mix I was recommended by my board supplier. Strips a whole copperboard in minutes.

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